The latest drawings of the -12 show the same spring-type nose gear that's on the regular -A models. Only time will tell what they end up going with in the final kits.
The -12 has been an interesting project for them. To me it seems that with all the other 'modern' models (-8, -9, -7 and -10) they changed very little after the prototype, but with this -12 project they are experimenting with a lot of changes (nose gear, wing design, engine selection, etc).
I suppose the -12 creates such a tight engineering problem since they are designing to a particular set of performance characteristics, instead of just building the darn airplane.